使用 python ftplib 下载但得到 ConnectionRefusedError: [Errno 111] Connection refused

Question

我正在尝试使用 ftplib 从 FTP 服务器下载，但出现ConnectionRefusedError: [Errno 111] Connection refused这是我的代码：

import os
import sys
import configparser
import socket

def downloadfile(downftp, remotepath,localpath):
    bufsize=1024
    fp = open(localpath,'wb')     
    downftp.set_debuglevel(2)
    downftp.retrbinary('RETR ' + remotepath, fp.write, bufsize)
    fp.close()   
    
def ftpconnect(host,username,password):
    ftp = FTP()
    ftp.connect(host=host,port=10022)
    ftp.login(username, password)
    return ftp

def uploadfile(ftp,remotepath, localpath):
    bufsize=1024
    fp=open(localpath,'rb')       
    ftp.set_debuglevel(0)
    ftp.storbinary('STOR ' + remotepath, fp, bufsize)
    fp.close()
conftp = ftpconnect('42.*.**.201','cityof********.****erver','COU***123')
downloadfile(conftp,'/world/datapacks/sys/data/pgdc/functions/food.mcfunction','food.mcfunction')

所有错误：

  File "<pyshell#7>", line 1, in <module>
    ftp.dir()
  File "/usr/lib/python3.6/ftplib.py", line 575, in dir
    self.retrlines(cmd, func)
  File "/usr/lib/python3.6/ftplib.py", line 468, in retrlines
    with self.transfercmd(cmd) as conn, \
  File "/usr/lib/python3.6/ftplib.py", line 399, in transfercmd
    return self.ntransfercmd(cmd, rest)[0]
  File "/usr/lib/python3.6/ftplib.py", line 361, in ntransfercmd
    source_address=self.source_address)
  File "/usr/lib/python3.6/socket.py", line 724, in create_connection
    raise err
  File "/usr/lib/python3.6/socket.py", line 713, in create_connection
    sock.connect(sa)
ConnectionRefusedError: [Errno 111] Connection refused

---

我试过ftp.set_pasv(True) ，它显示相同的错误ConnectionRefusedError: [Errno 111] Connection refused

我试过ftp.set_pasv(False) ，它挂在

...
*cmd* 'RETR /world/datapacks/sys/data/pgdc/functions/food.mcfunction'
*put* 'RETR /world/datapacks/sys/data/pgdc/functions/food.mcfunction\r\n'
*get* '150 Opening ASCII mode data connection\n'
*resp* '150 Opening ASCII mode data connection'

请帮助。谢谢。

Answer 1

您是否能够从命令行成功连接到 ftp 服务器，即没有 python 代码？ 我认为这应该是检查连接是否被 ftp 拒绝或 python 代码有问题的第一步。

 ftp = FTP(host=ftp_host, user=ftp_user,passwd=ftp_pass)
 ftp.login()

你的上传工作正常吗？